WordPress在激活主题的时候自动新建页面

<?php
$post = array(
  'ID'             => [ <post id> ] //Are you updating an existing post?
  'menu_order'     => [ <order> ] //If new post is a page, it sets the order in which it should appear in the tabs.
  'comment_status' => [ 'closed' | 'open' ] // 'closed' means no comments.
  'ping_status'    => [ 'closed' | 'open' ] // 'closed' means pingbacks or trackbacks turned off
  'pinged'         => [ ? ] //?
  'post_author'    => [ <user ID> ] //The user ID number of the author.
  'post_category'  => [ array(<category id>, <...>) ] //post_category no longer exists, try wp_set_post_terms() for setting a post's categories
  'post_content'   => [ <the text of the post> ] //The full text of the post.
  'post_date'      => [ Y-m-d H:i:s ] //The time post was made.
  'post_date_gmt'  => [ Y-m-d H:i:s ] //The time post was made, in GMT.
  'post_excerpt'   => [ <an excerpt> ] //For all your post excerpt needs.
  'post_name'      => [ <the name> ] // The name (slug) for your post
  'post_parent'    => [ <post ID> ] //Sets the parent of the new post.
  'post_password'  => [ ? ] //password for post?
  'post_status'    => [ 'draft' | 'publish' | 'pending'| 'future' | 'private' | 'custom_registered_status' ] //Set the status of the new post.
  'post_title'     => [ <the title> ] //The title of your post.
  'post_type'      => [ 'post' | 'page' | 'link' | 'nav_menu_item' | 'custom_post_type' ] //You may want to insert a regular post, page, link, a menu item or some custom post type
  'tags_input'     => [ '<tag>, <tag>, <...>' ] //For tags.
  'to_ping'        => [ ? ] //?
  'tax_input'      => [ array( 'taxonomy_name' => array( 'term', 'term2', 'term3' ) ) ] // support for custom taxonomies. 
);
wp_insert_post( post, wp_error );
?>

function ashu_add_page(title,slug,
    $allPages = get_pages();//获取所有页面
    $exists = false;
    foreach( allPages as page ){
        //通过页面别名来判断页面是否已经存在
        if( strtolower( page->post_name ) == strtolower( 
            $exists = true;
        }
    }
    if( $exists == false ) {
        $new_page_id = wp_insert_post(
            array(
                'post_title' => $title,
                'post_type'     => 'page',
                'post_name'  => $slug,
                'comment_status' => 'closed',
                'ping_status' => 'closed',
                'post_content' => '',
                'post_status' => 'publish',
                'post_author' => 1,
                'menu_order' => 0
            )
        );
        //如果插入成功 设置模板
        if(new_page_id && 
            //保存页面模板信息
            update_post_meta(new_page_id, '_wp_page_template',  page_template);
        }
    }
}

function ashu_add_pages() {
    global $pagenow;
    //判断是否为激活主题页面
    if ( 'themes.php' == pagenow && isset( 
        ashu_add_page('ASHU_PAGE','ashu-page','page-ashu.php'); //页面标题ASHU_PAGE 别名ashu-page  页面模板page-ashu.php
        ashu_add_page('PAGE_ASHU','page-ashu','ashu-page.php');
    }
}
add_action( 'load-themes.php', 'ashu_add_pages' );